Track sanding apparatus



Apr-i129, 1941.

A. NATION TRACK SANDING APPARATUS Filed July 22, 1939 lNVENT OR Augustus Na Man Patented Apr. 29, 1941 UNITED STATES ATENT oFFicE 1 f Myinvention relates to track sanding apparatus and has for an object theprovision of an apparatus of this kind which will serve to transfer sandfrom a sand box to the track to be sanded without becoming stepped up orotherwise getting out of order.

My invention further contemplates the provision of a sanding apparatusemploying air for transferring the sand from the box to the tracks andin which the air is properly regulated as to pressure and so directed asto prevent the usual cutting of the several parts.

My invention embodies other novel features, details of construction andarrangement of parts which are hereinafter set forth in thespecification and claims and illustrated in the accompanying drawing,forming part thereof, wherein:

Fig. 1 is a side elevational view showing my impnoved track sandingapparatus;

Fig. 2 is a sectional view taken along the line II-II of Fig. 1;

Fig. 3 is a sectional view taken along the line III-III of Fig. 1;

Fig. 4 is a sectional View taken along the line IV-IV of Fig. 1;

Fig. 5 is a sectional view taken along the line V--V of Fig. 2; and

Fig. 6 is a sectional view taken along the line VIVI of Fig. 2.

Referring now to the drawing for a better understanding of my invention,I show a track sanding apparatus comprising a housing I having a sandpassageway 8 which starts at the inlet opening 9 disposed within thesand box II and extends upwardly and outwardly and. terminates in adownwardly disposed outlet opening I2 which is threaded to receive aconduit l3 leading to the track to be sanded. The housing is threaded toengage in the threaded opening l4 provided in the sand box.

A flanged opening I6 is provided in the housing 1 to receiv a plugmember ll which is held in position by means of screws iii. The plugmember is formed with an air chamber [9 having an air supply conduit 2|leading thereto. A primary air passageway 22 is formed in the plugmember and is connected with the air chamber 19 by a convergingpassageway 23 which also serves as a valve seat for the adjustment screw24. The primary air passageway 22 extends from the plug member through apipe conduit 26 to a position adjacent the inlet opening 9. A cleanoutplug 21 is provided to close one end of the passageway 22.

A secondary air passageway 28 is formed in the plug member I! and isconnected with the air chamber l9 by a converging passageway 29 whichalso serves as a valve seat for the adjustment screw 3!. One end of thepassageway 28 is closed by means of a clean-out plug 32, and the otherend of the passageway leads through a restricted orifice 33 to an airdischarge chamber 34 disposed to direct a stream of air through thecenter of the outlet opening I2.

An auxiliary passageway 36 is provided in the plug member I! to directair from the air supply conduit 31 to the air discharge chamber 34.

In the operation of the apparatus described, the air passes through theconduit 2| to the air chamber I9 and thence through the passageways 23and 29 to the passageways 22 and 28, respectively. The air passingthrough the primary passageway 22 is directed through the sand inletopening 9 for the purpose of agitating and lifting the sand, within thesand box upwardly through the sand inlet opening and into the sandpassageway 8; while the air passing through the secondary passageway 28is directed downwardly through the air discharge chamber 34 into tiresand outlet conduit 13 and thus acts to draw the sand through the sandpassageway from the inlet opening 9 to the outlet opening I2. Theadjustment screws 24 and 3| may be regulated to vary the amount of airpassing through the passageways 22 and 28, respectively. After the trackhas been sanded, air is admitted to the auxiliary passageway 36 to cleanthe sand but of the conduit l3 to prevent clogging of same.

While I have shown my invention in but one form it is obvious to thoseskilled in the art that it is not so limited but is susceptible ofvarious changes and modifications without departing from the spiritthereof; and I desire, therefore, that only such limitations shall beplaced thereupon as are imposed by the prior art.

I claim:

1. In a track sanding apparatus to be mounted on a sand box, a housing,a sand passageway extending through the housing and having an inletopening and an outlet opening, said passageway extending upwardly andoutwardly from the inlet opening to the outlet opening and thencedownwardly through the outlet opening, said passageway having its inletopening disposed within the sand box and facing downwardly, a primaryair passageway provided within the housing and. located to direct astream .of air from adjacent one side of the mary air passageway and thesecondary air passageway.

2. An apparatus according to claim 1 in which, the individualpassageways serve as seats for adjustment screws for regulating the flowof air through the passageways.

3. An apparatus according to claim 1 in which, the several airpassageways are formed in a plug which is detachably connected to thehousing 10 adjacent the outlet end thereof.

AUGUSTUS NATION.

